Phoenix PSR-PS21-1NO-1NC-24DC-SC-coupling relay 2700357, suitable for coupling relays with high and low requirements of SIL 2, can connect digital output signals to I/O,1 starting current path, 1 feedback loop, 1 digital signal Output, safe state shutdown, test pulse filter, fixed screw connection terminal
Product Type
coupling relay
Product Series
PSRmini
Application
Safety Shutdown
high requirements
low requirements
Ex
control
single channel
Relay Model
Electromechanical relay with mechanical interlocking contacts according to IEC/EN 61810-3
insulation characteristics
Overvoltage Level
III
pollution level
2
Typical startup time (Us)
< 100 ms (when controlled by A1, there is us)
Typical release time
< 35 ms (when controlled via A1)
Recovery Time
500 ms
rated conditions
2.35W (IL² = 36 A²)
Rated operating mode
100% Eligible
Rated insulation voltage
250V AC
rated overvoltage/insulation
safety isolation, 6 kV reinforced insulation of control circuits, start circuit, confirmation current path, signal output to enable current path; 4 kV/basic insulation between all current paths and enclosure
Power
Name
A1/A2
Rated control circuit supply voltage US
20.4V DC ... 26.4V DC
Rated control circuit supply voltage US
24V DC -15 % / +10%
Rated control supply current IS
Typical 45 mA
US
Typical 1.08W
Impulse current
Typical 400 mA (& Delta;t < 10 & micro;s Us)
filter time
max. 2 ms (in A1-A2; test pulse width)
≥ 100 ms (at A1-A2; test pulse rate)
protection circuit
Series protection against polarity reversal; 33V suppressor diode
Power
Name
21/A2
Diagnostic supply voltage UD
24V DC -15 % / +10%
UDinput current
6 mA (at 21-A2, for UD; depending on load +100 mA(M1 and 22))
UD
Typical 2.5 A (& Delta;t < 20 & micro;s UD)
protection circuit
Series protection against polarity reversal; 38V suppressor diode
